矿山支护 meaning in Chinese

mine support

The pouring anchor and shot concrete as used from the middle of 1950 " s , while the technology of anchorage , which was used as foundation support was popular in europe in i960 " s , and this method was used to strengthen the tunnels " ceilings and support mines from 1970 " s in china
在我国70年代前已开使在加固隧洞顶、矿山支护等工程中开始使用， 80年代开始应用于深基坑支护工程，但也主要是与钢板桩、灌注桩、地下连续墙等结合使用，做为支护系统的一种锚固手段取得了良好的效果。